Title:
SENDING FREQUENCY ADJUSTMENT METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2022/151391
Kind Code:
A1
Abstract:
Embodiments of the present application provide a sending frequency adjustment (FA) method and apparatus, for use in mitigating the technical problems in existing multi-TRP communication scenarios that a terminal device cannot determine an uplink sending frequency according to received multiple TRSs, and consequently, the terminal device cannot adjust the uplink sending frequency, and a wireless access network device cannot correctly track the center frequency of an uplink signal received by the TRPs, such that the demodulation performance of the wireless access network device is lowered. The method comprises: a terminal device measuring TRSs respectively sent by multiple TRPs, different TRPs corresponding to different TRSs; the terminal device determining an uplink sending frequency according to a reference TRP, the reference TRP being one of the multiple TRPs; the terminal device sending an uplink signal on the uplink sending frequency; receiving an FA command from the reference TRP; and adjusting the uplink sending frequency according to the FA command, the FA command being used for indicating an FA parameter, and the FA parameter being determined according to the uplink signal.
Inventors:
LI KE (CN)
LI XIANG (CN)
ZHAO ZEHAN (CN)
DAI XIZENG (CN)
LI XIANG (CN)
ZHAO ZEHAN (CN)
DAI XIZENG (CN)
Application Number:
PCT/CN2021/072261
Publication Date:
July 21, 2022
Filing Date:
January 15, 2021
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04W56/00; H04B7/26
Foreign References:
| CN101567708A | 2009-10-28 | |||
| CN111373665A | 2020-07-03 |
Other References:
HUAWEI, HISILICON: "Discussion on multi-TRP for high speed train in Rel-17", 3GPP DRAFT; R1-2007590, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. E-meeting; 20201026 - 20201113, 24 October 2020 (2020-10-24), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051946432
VIVO: "Evaluation and discussion on HST-SFN schemes", 3GPP DRAFT; R1-2005367, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20200817 - 20200828, 8 August 2020 (2020-08-08), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051917392
INTEL CORPORATION: "Discussion on PRACH and TA for NTN", 3GPP DRAFT; R1-1910658 ON PRACH AND TA FOR NTN, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Chongqing, China; 20191014 - 20191020, 5 October 2019 (2019-10-05), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051789450
VIVO: "Evaluation and discussion on HST-SFN schemes", 3GPP DRAFT; R1-2005367, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20200817 - 20200828, 8 August 2020 (2020-08-08), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051917392
INTEL CORPORATION: "Discussion on PRACH and TA for NTN", 3GPP DRAFT; R1-1910658 ON PRACH AND TA FOR NTN, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Chongqing, China; 20191014 - 20191020, 5 October 2019 (2019-10-05), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051789450
Attorney, Agent or Firm:
BEIJING ZBSD PATENT & TRADEMARK AGENT LTD. (CN)
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